OAA computing section circular NK 1292 P/2005 N3 (Larson)

The following improved orbital elements, by S. Nakano, are from 95 observations 2005 July 3 to Dec. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.68 arc second. See an orbit on YC 2478. Epoch = 2005 Dec. 16.0 TT T = 2005 Dec. 10.58563 +/- 0.00565 (m.e.) TT Peri. = 58.51000 +/- 0.00225 Node = 298.60397 +/- 0.00020 (2000.0) Inc. = 6.32493 +/- 0.00006 q = 2.1970373 +/- 0.0000143 AU e = 0.3881068 +/- 0.0000171 a = 3.5905566 +/- 0.0000288 AU n' = 0.14486431 +/- 0.00000174 P = 6.804 +/- 0.0000817 years The predicted orbit for the 2012 return is as follows: T = 2012 Sept.29.36242 TT Epoch = 2012 Sept.30.0 TT Peri. = 58.82039 e = 0.3896270 Node = 298.48050 (2000.0) a = 3.5829030 AU Inc. = 6.32544 n'= 0.14532874 q = 2.1869071 AU P = 6.782 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2005/ 050728 415 0.2- 0.5- 051001 G96 0.8- 0.3- 050703 G96 0.9- 0.4- 050730 415 1.8- 1.3- 051001 G96 1.1- 0.2- 050703 G96 0.8- 0.2- 050730 415 1.0- 1.0- 051001 G96 0.9- 0.1- 050703 G96 0.2- 0.2- 050731 E12 1.1- 0.9- 051001 118 0.9+ 0.7- 050703 G96 0.1- 0.5- 050731 E12 0.4+ 1.1- 051001 118 1.2+ 0.5- 050705 G96 0.1- 0.1- 050731 E12 1.5- 0.3- 051008 703 1.9- 0.1+ 050705 G96 0.1- 0.5- 050731 E12 0.8- 0.0 051008 703 (4.0- 0.8+) 050705 G96 0.1- 0.3+ 050803 D74 0.3+ 1.4+ 051008 703 1.1+ 0.2- 050705 G96 0.3- 0.1+ 050803 D74 1.0+ 1.3+ 051008 703 0.0 0.2- 050705 G96 0.3- 0.2+ 050804 D74 0.1- 0.8+ 051022 703 0.9+ 1.5- 050705 G96 0.5+ 0.3+ 050804 D74 0.2- 1.4+ 051022 703 1.2+ 0.4- 050705 G96 0.1- 0.2+ 050804 D74 0.0 0.7+ 051022 703 1.1+ 0.6+ 050705 G96 0.5- 0.1- 050806 644 0.2- 0.1+ 051105 J76 0.8- 0.4+ 050705 413 0.6+ 0.1- 050806 644 0.1+ 0.0 051105 J76 0.6- 0.2+ 050705 413 0.7+ 0.1+ 050806 644 0.1+ 0.1+ 051105 J76 1.7- 1.3+ 050706 204 1.0- 0.4+ 050811 673 0.1+ 0.4+ 051112 703 0.4- 0.5+ 050709 673 0.7- 1.0- 050811 673 0.3+ 0.5+ 051112 703 0.7+ 0.2+ 050709 673 0.5+ 1.1- 050811 673 0.3+ 0.5+ 051112 703 0.5+ 0.5- 050709 673 1.4+ 1.0- 050811 673 0.0 0.4+ 051112 703 (2.7- 0.5-) 050710 673 0.4- 0.5+ 050829 461 0.3- 0.1- 051119 699 (0.4- 3.1+) 050710 673 0.2- 0.2+ 050829 461 0.2+ 0.2- 051119 699 1.1+ 0.7+ 050710 673 0.1+ 0.1- 050829 170 0.7+ 0.6- 051119 699 (7.8+ 0.2-) 050711 691 0.8+ 0.2+ 050829 170 0.7+ 0.6- 051125 703 0.9+ 0.0 050711 691 0.3+ 0.1+ 050829 170 0.7+ 0.6- 051125 703 1.0+ 0.4+ 050711 691 0.3+ 0.0 050829 170 0.1+ 0.3+ 051125 703 0.6+ 0.0 050713 213 1.0+ 0.8+ 050901 691 0.0 0.0 051125 703 0.1+ 0.8- 050714 213 0.3+ 1.1+ 050901 691 0.6+ 0.0 051201 703 0.4- 0.2+ 050718 644 0.0 0.3- 050901 691 0.2+ 0.0 051201 703 1.0+ 1.5+ 050718 644 0.3+ 0.3- 050908 673 0.2+ 0.3+ 051201 703 0.1- 1.0+ 050718 644 0.9+ 0.6+ 050908 673 0.1- 0.2+ 051201 703 0.9- 0.6- 050719 147 (3.0+ 2.8+) 050908 673 1.1- 0.1+ 051202 704 0.0 0.1- 050719 147 0.0 0.9+ 050908 673 0.5- 0.0 051202 704 1.6- 0.8- 050719 147 0.5+ 0.8+ 050925 215 0.4+ 1.0- 051202 704 (2.9- 1.4+) 050728 415 0.5+ 0.8- 051001 G96 1.0- 0.3- 051202 704 1.1- 0.1- ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 2005 Dec. 7

Back to Nakano Note Page